Two checks — cost and trust

Kraken vs Coinbase.

Two different questions decide this matchup: whether you get your money out, and what a trade really costs. Below, each venue’s sourced Reliability Score sits beside the measured all-in cost of the same €1,000 Bitcoin buy — trading fee plus the hidden spread from the live orderbook, withdrawal included where the venue publishes one — measured 2026-07-29 07:48 UTC.

On reliability, Kraken scores 88, Coinbase 66 (of 100, sourced & dated). Kraken currently carries the higher score — cheapest and safest need not be the same venue.

At this measurement, the same €1,000 BTC buy cost €4.00 all-in on Kraken vs €12.00 on Coinbase. Moments and sizes change the answer — the live comparison recomputes for your exact trade.

Kraken

Published fee (maker / taker): 0.25% / 0.40%
Reliability Score: 88 / 100
Measured cost · €1,000 BTC buy: €4.00
You get: 0.01762832 BTC
Of which hidden spread: €0.00
BTC withdrawal: not published — excluded

Open Kraken ↗neutral link

Coinbase

Published fee (maker / taker): 0.60% / 1.20%
Reliability Score: 66 / 100
Measured cost · €1,000 BTC buy: €12.00
You get: 0.01748085 BTC
Of which hidden spread: €0.00
BTC withdrawal: not published — excluded

Open Coinbase ↗neutral link

Which is safer?

These two look similar on paper — both US-rooted, both MiCAR-licensed in 2025 (Kraken via the Central Bank of Ireland, announced 2025-06-25; Coinbase via Luxembourg’s CSSF, announced 2025-06-20), and both saw their SEC cases dismissed with prejudice in early 2025. The differences live one layer down.

Proof of reserves: Kraken runs a quarterly auditor-assisted Merkle-tree program with per-client self-verification (~$21.5B of client assets verified in March 2025). Coinbase runs no Merkle-tree proof-of-reserves at all — it substitutes public-company assurance: an audited annual 10-K and quarterly reviews. Whether an audited balance sheet or a client-verifiable Merkle proof is the stronger form of evidence is exactly the kind of question our methodology page unpacks; the component table above shows how each is scored.

Incident records: Kraken (founded 2011) has no platform-wide withdrawal halt documented in 36 months of public status history; its June 2024 zero-day bug (~$3M withdrawn by security researchers) was patched in 47 minutes with funds returned, and Australia’s court ordered AUD 8M over a margin product in December 2024. Coinbase’s recent record is heavier: a May 2025 insider data breach affecting 69,461 customers (bribed support contractors; no funds or passwords; estimated $180–400M cost per its SEC 8-K), an ~8-hour halt of trading and withdrawals during the 2026-05-07 AWS thermal event, ~3 hours of degraded service in the 2025-10-20 AWS outage, and a £3.5M UK FCA fine in July 2024. Every entry is dated and sourced; the live scores above apply 24-month decay to all of it.

Full sourced basis, incident by incident: Kraken · Coinbase.

Which is cheaper?

The live cards above carry the published base-tier fees and the measured all-in cost of the same €1,000 BTC buy — the spread is re-measured continuously. Structurally: Kraken publishes a fixed BTC withdrawal fee (shown live above); Coinbase publishes no fixed schedule and passes the prevailing network fee through at withdrawal time, so its totals on this page honestly exclude withdrawal.

Both venues carry a curated convenience markup worth knowing about: Coinbase’s simple-buy/convert flow at roughly 50–200 bps and Kraken’s Instant Buy at roughly 150–240 bps (both curated ranges, verified 2026-06-10). Our table prices the spot orderbook on both — trading spot avoids the markup on either venue.

Questions, answered

Is Kraken or Coinbase cheaper for buying Bitcoin?

At the most recent measurement (measured 2026-07-29 07:48 UTC), a €1,000 Bitcoin buy cost €4.00 all-in on Kraken versus €12.00 on the other venue (trading fee plus the spread measured on the live orderbook). Market conditions and order size change the answer — the live comparison at skontro.com/true-cost recomputes it for any trade.

Is Kraken or Coinbase safer?

We don't issue safety verdicts. On Skontro's sourced Reliability Score, Kraken currently scores 88/100 and Coinbase 66/100 — Kraken scores higher. The score is built from documented withdrawal reliability, proof of reserves, regulatory standing, security history, support and maturity; every negative data point is dated and sourced on the venue pages.

What trading fees do Kraken and Coinbase charge?

Published base-tier fees: Kraken 0.25% maker / 0.40% taker; Coinbase 0.60% maker / 1.20% taker. The published fee is only part of the real cost — execution spread comes on top and is measured live on this page.

Has Kraken or Coinbase ever halted withdrawals?

Kraken has no platform-wide withdrawal halt documented in 36 months of public status history (asset-level pauses only). Coinbase halted trading, sends and withdrawals for ~8 hours during the 2026-05-07 AWS data-center thermal event, per its own postmortem, and saw ~3 hours of degraded transfers in the 2025-10-20 AWS outage. Dated sources for both records sit on the Skontro venue pages.

Method, in one paragraph

We walk each venue’s live public orderbook for the exact order size, add the published base-tier fee and the venue’s published withdrawal fee, and rank by what you actually receive. Venues without fresh data are omitted, never faked. The Reliability Score is sourced and dated, and never part of the cost ranking — and ranking is never influenced by affiliate commissions. Cost methodology · Score methodology.

More comparisons

Some venue links are affiliate links. Skontro earns a commission from the linked platform at no extra cost to you. Ranking is never influenced by affiliate payout. Ranking is always by the measured result of the trade — what you actually receive — never by affiliate relationship.